Teat-cup.



D. KLEIN.

TEAT CUP.

APPLICATION FILED 11111.25. 19091 'Patentd 11611151910 uNrrnD s'rafrns PATENT ernten.

DANIEL KLEIN, OF SPOKANE. WASHINGTON.

{FEAT-CUP.

To all who/m 'it may concern:

.Be it known that I, Damm. KLEIN, a citi. zen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented a new and useful 'feat-Cup, of which the following is a specification.

This invention relates to teat cups of that general class employed in connection With the cow milking apparatus and has for its principal object to provide a teat cup which in operation will closely approximatethe natural action of the calf.

A further object of the invention is to provide a teat cup of such construction as to prevent congestion of the teat and to com press the latter very gradually from the root toward the tip.

A still further object of the invention is to provide a teat cup formed of relativelyrigid or non-yielding material and provided with a freely flexible section which when vsubjected to the action of the vacuum within the cup Will gradually press against the teat.

A still further vobject of the invention is toy provide a teat cup formed for the most part of, or reinforced with, non-yieldable material and having a yieldable section of approximately triangular form the wider end of-which is at the top of the cup so as to yield first when subjected to the action of,

the vacuum.

A still further object of the invention is to provide a teat cu formed of rubber and provided with aremforce of somerelatively stili` material.

With' these and other objects in View as will more fully hereinaftemappear the invention consists in certain novel details of construction andai-rangement of parts, as will be more fully hereinafter described, illustrated in'the accompanying drawings, andmere particularly pointed out in the appended claims, it being understood that va rions changes in the form, proportion, size and minor details of construction may be made Without departing from'the spirit or sacrificing any of the advantages of the invention.

Inv the accompanying drawingsz-Figrre l is a sectional elevation of a teat cup constructed in accordance with the invention. Fig. 2 is a perspectiye View of the same.

Specification of Letters Patent.

Application led January 25, 1909.

Patented Feb. 15, 1910.

Serial No. 474,117.

Fig. 3 is a sectional plan view of the teatcup on the line 33 of Fig. l. Fig. 4; is a similar View on the line 4t-it of Fig. l.

, Similar numeral-s of reference are employed to indicate corresponding parts throughout the several figures of the drawings.

The teat cup 10 is gradually tapered to conform to the structure of the teat and at its lower end is provided with an integral nipple of rubber which communicates with the milk discharge opening 12 at the bottom of the cup there being an abrupt shoulder 13 formed Within the nipple for the reception of the inner end of a connecting tube llt to which the main tube 15 is coupled, this shoulder serving to prevent the nipple tube being forced within the lower portion of the cup. l

The cup and nipple are formed of rubber or equivalent material and at the upper edge is an inwardly extending flange 1C that is adapted to engage against the root of the teat 1n much the same manner as the latter would -be caught and compressed by the gums of the calf. The entire upper edge and the whole of the nip le are'formed preferably of solid rubber wiile the main portion of the body of the cup is provided with a reinforce 17 which may be formed of canvas or other relatively .stiff material. This reinforce extends at the top through -approximately one-half the circumference of the cup and at thebottom extends entirely around the cup, While from a point n'ear the bottom to vthe top the edge of the reinforce is inclined so as to forni a tapered portion consisting simply of pure rubber and without any reinforce. i

As the main body portion of the cup is relatively stiff it will not yield, or will yleld only slightly when a vacuum is created 'within the cu by the pulsatingmechanism,

but the yielc able area will be forced inward by natural Vatmospheric pressurel and the upper portion of this yieldable area be"- ing more flexible than the lower portion-will close in against the teat and then as the action continues the entire ieldable area will be moved inward so that t e teat Will be subjected to gradual pressure from the root downward. The edges'of the reinforce may be spaced from eachother on other than the tapered or inclined lines shown, and may 1. A teat cup having a longitudinally disosed portion of its teat engaging Wall read- 1ly yielda'ble and having the area of said portion of less extent toward the bottom of the cup than at the top thereof.

2. A teat cup having a longitudinally disposed teat engaging area more flexible than the remainder of the cup and gradually decreasing in :flexibility from the top of the cup toward the bottom thereof.

8. A teat cup the Wall of which is provided With a stifiening reinforce, the edge of the reinforce being arranged on inclined lines spaced from each other to form an approximately triangular yieldable area.'

4. A rubber teat cup having aV reinforce embedded in the wall thereof, the reinforce being of less area than the Wall of the cup, but of gradually greater relative circumferential extent from the teat receiving end toward the discharge end of the cup.

5. A teat cup having a teat compressing area thc yieldability of which gradually decreases from the rim of the cup downward.

6.v A rubber teat cup having an integral nipple, the latter having an integral abrupt shoulder for the reception of the end of a connecting tube.

In testimony that I claim the foregoing .as my own, I have hereto aliXed my signalture in the presence of two Witnesses.

DANIEL KLEIN.A

Witnesses:

K. E. DAVIS, A. C. Wam. 

